SRAM's Apex® 1 drivetrain provides the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM's X-HORIZONâ„¢ geometry and our ROLLER BEARING CLUTCHâ„¢. Just go: Apex 1 will get you there.

• Long cage fits up to a 42 tooth cog
• With CAGE LOCKâ„¢ technology, wheel removal and installation are easier than ever
• Equipped with Roller Bearing Clutchâ„¢
• X-HORIZONâ„¢ design reduces shift force, eliminates ghost shifting and chain slap
• Large upper pulley offset automatically adjusts chain gap

Specifications